好吧，我到处寻找解决方案，但没有一个能奏效。昨天，我的XAMPP工作得非常好。今天，我试图开始我的MySQL服务，它不起作用。让我更具体一点：这是XAMPP日志：
Attempting to start MySQL app...
9:54:00 AM [mysql] Status change detected: running
9:54:01 AM [mysql] Status change detected: stopped
9:54:01 AM [mysql] Error: MySQL shutdown unexpectedly.
9:54:01 AM [mysql] This may be due to a blocked port, missing dependencies,
9:54:01 AM [mysql] improper privileges, a crash, or a shutdown by another >method.
9:54:01 AM [mysql] Press the Logs button to view error logs and check
9:54:01 AM [mysql] the Windows Event Viewer for more clues
9:54:01 AM [mysql] If you need more help, copy and post this
9:54:01 AM [mysql] entire log window on the forum
这是错误日志：
016-03-23 09:54:00 1d04 InnoDB: Warning: Using innodb_additional_mem_pool_size is DEPRECATED. This option may be removed in future releases, together with the option innodb_use_sys_malloc and with the InnoDB's internal memory allocator.
160323 9:54:00 [Note] InnoDB: Using mutexes to ref count buffer pool pages
160323 9:54:00 [Note] InnoDB: The InnoDB memory heap is disabled
160323 9:54:00 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions
160323 9:54:00 [Note] InnoDB: Memory barrier is not used
160323 9:54:00 [Note] InnoDB: Compressed tables use zlib 1.2.3
160323 9:54:00 [Note] InnoDB: Not using CPU crc32 instructions
160323 9:54:00 [Note] InnoDB: Initializing buffer pool, size = 16.0M
160323 9:54:00 [Note] InnoDB: Completed initialization of buffer pool
160323 9:54:00 [Note] InnoDB: Highest supported file format is Barracuda.
160323 9:54:00 [Note] InnoDB: The log sequence numbers 1665234 and 1665234 in ibdata files do not match the log sequence number 2110930 in the ib_logfiles!
160323 9:54:00 [Note] InnoDB: Database was not shutdown normally!
160323 9:54:00 [Note] InnoDB: Starting crash recovery.
160323 9:54:00 [Note] InnoDB: Reading tablespace information from the .ibd files...
160323 9:54:00 [Note] InnoDB: Restoring possible half-written data pages
160323 9:54:00 [Note] InnoDB: from the doublewrite buffer...
160323 9:54:01 [Note] InnoDB: 128 rollback segment(s) are active.
160323 9:54:01 [Note] InnoDB: Waiting for purge to start
160323 9:54:01 [Note] InnoDB: Percona XtraDB (http://www.percona.com) 5.6.22-72.0 started; log sequence number 2110930
160323 9:54:01 [Note] Plugin 'FEEDBACK' is disabled.
160323 9:54:01 [Note] Server socket created on IP: '::'.
Apache工作正在运行btw。我尝试过的事情：
删除ibdata1文件。 更改my.ini中的端口。 Skype没有运行。 停止万维网发布服务。
答案 0 :(得分：0)
好的，我自己弄清楚了。所以我查看了Windows事件查看器，发现一些错误来自MySQL。我点击了最近的一个，发现了这个。
mysqld.exe：表'。\ mysql \ db'被标记为崩溃，最后（自动？）修复失败
我替换了所有db文件：db.frm，db。 MYD和db.MYI（以防万一）将这些内容复制到桌面上。而且中提琴再次起作用。所有的数据都存在，甚至是我记得昨天插入的数据。
答案 1 :(得分：0)
在我的情况下，这是因为我安装了MySQL Workbench，它也使用端口3306自己安装MySQL。 因此，有2个MySQL安装，并且都尝试使用端口3306。Workbench似乎优先。
更改XAMPP MySQL以使用端口3308是最简单的。
my.ini（在某些MySql安装中为my.cnf；在其他my.ini中）T:\xampp\mysql\bin\my.ini上找到了它。
（我的系统上MySQL Workbench的类似文件位于``）3306（或port）；替换为3308。port = 3306替换行：port = 3308